steel

noun

any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying according to composition and heat treatment: generally categorized as having a high, medium, or low-carbon content.

a thing or things made of this metal.

a flat strip of this metal used for stiffening, especially in corsets; stay.

a bar of this metal that has one end formed to hold a bit for driving through rock.

steels,stocks or bonds of companies producing this metal.

a sword.

a rounded rod of ridged steel, fitted with a handle and used especially for sharpening knives.

adjective

pertaining to or made of steel.

like steel in color, hardness, or strength.

verb (used with object)

to fit with steel, as by pointing, edging, or overlaying.

to cause to resemble steel in some way.

to render insensible, inflexible, unyielding, determined, etc.: He steeled himself to perform the dangerous task.

British Dictionary definitions for steel (1 of 2)

steel

/ (stiːl) /

noun

any of various alloys based on iron containing carbon (usually 0.1–1.7 per cent) and often small quantities of other elements such as phosphorus, sulphur, manganese, chromium, and nickel. Steels exhibit a variety of properties, such as strength, machinability, malleability, etc, depending on their composition and the way they have been treated

Science definitions for steel

steel

[ stēl ]

Any of various hard, strong, flexible alloys of iron and carbon. Often, other metals are added to give steel a particular property, such as chromium and nickel to make it stainless. Steel is widely used in many kinds of tools and as a structural material in building.